Vacuum Brake Booster: Description and Operation

BOOSTER ASSEMBLY
The booster is located between the master cylinder and the brake pedal. It is so designed that the force created when the brake pedal is depressed is mechanically increased combined with the engine vacuum.

CAUTION:
^ Never disassemble brake booster assembly. If it is found faulty, replace it with new assembly.
^ The torque values specified are for dry, unlubricated fasteners. If any hydraulic component is removed or brake line disconnected, bleed the brake system.